I would put alongside it, "Beyond the Sea," "Pilot," "Deep Throat," "One Breath," "Squeeze," "Tooms," "Bad Blood," "Jose Chung's From Outer Space," "Oubliette," "Syzygy," "The Erlenmeyer Flask," "Duane Barry" and "Ascension" as a two-parter, "Piper Maru" and "Apocrypha," another outstanding two-parter, "Clyde Bruckman's Final Repose," "Small Potatoes," "Ice," "E.B.E.," "Anasazi," "The Blessing Way" and "Paper Clip" (such an epical three-parter!), "Die Hand Die Verletz," and "Irresistible" all stand out for me right away. There are many more great episodes but those are the ones that come to mind off the top of my head.
Thank you again for the notification--both literally and figuratively--of the new series!